My research focusses on the evolutionary and psychological origins of cooperation. In particular, I am interested in why and how individuals decide to help others instead of being selfish. To investigate these questions, I study mainly chimpanzees (Pan troglodytes) and Norway rats (Rattus norvegicus). Most of my studies are based on predictions derived from game theoretical models that I test mainly experimentally in both the lab and field. For more information, please visit my website: https://manon-schweinfurth.jimdo.com/.